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Jackson problem 5.4: Magnetic induction in a current-free region

  1. May 11, 2017 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
    I think that is taylor series expansion, How that can be expanded right that? even b0, b1 ... is not a differential term.

    The solution just use b(z) = Bz(0,z)
  2. jcsd
  3. May 12, 2017 #2


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    Gold Member

    Hint: Try taking the divergence and see what you can do with the ##b_{n}## terms algebraically.
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